vim plugin: Add quiet flag so non-error actions go unreported (#1733)

docs/editor_integration.md

@@ -123,6 +123,7 @@ Configuration:
 - `g:black_linelength` (defaults to `88`)
 - `g:black_skip_string_normalization` (defaults to `0`)
 - `g:black_virtualenv` (defaults to `~/.vim/black` or `~/.local/share/nvim/black`)
+- `g:black_quiet` (defaults to `0`)
 
 To install with [vim-plug](https://github.com/junegunn/vim-plug):
 

plugin/black.vim

@@ -48,6 +48,9 @@ if !exists("g:black_string_normalization")
     let g:black_string_normalization = 1
   endif
 endif
+if !exists("g:black_quiet")
+  let g:black_quiet = 0
+endif
 
 python3 << EndPython3
 import collections
@@ -74,6 +77,7 @@ FLAGS = [
   Flag(name="line_length", cast=int),
   Flag(name="fast", cast=strtobool),
   Flag(name="string_normalization", cast=strtobool),
+  Flag(name="quiet", cast=strtobool),
 ]
 
 
@@ -156,6 +160,7 @@ def Black():
     string_normalization=configs["string_normalization"],
     is_pyi=vim.current.buffer.name.endswith('.pyi'),
   )
+  quiet = configs["quiet"]
 
   buffer_str = '\n'.join(vim.current.buffer) + '\n'
   try:
@@ -165,6 +170,7 @@ def Black():
       mode=mode,
     )
   except black.NothingChanged:
+    if not quiet:
       print(f'Already well formatted, good job. (took {time.time() - start:.4f}s)')
   except Exception as exc:
     print(exc)
@@ -183,6 +189,7 @@ def Black():
         window.cursor = cursor
       except vim.error:
         window.cursor = (len(window.buffer), 0)
+    if not quiet:
       print(f'Reformatted in {time.time() - start:.4f}s.')
 
 def get_configs():